Frame of chair



FIG. 1 is a perspective view of a frame of a chair of my design having broken lines wherein the claimed design is embodied and no part of the claimed design;

FIG. 2 is a perspective view of a frame of a chair shown without the circular knobs and without broken lines;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM I claim the ornamental design for a frame of chair, as shown and described. 